Solar 101 Solar Panels | Page 5

Semiconductors

Semiconductors?

A group of atoms that have a small number of mobile charges.

Why Silicon?

With it’s completely filled/taken electrons it becomes harder for energy to escape.

For solar panels it's most important to trap as much energy as possible.

Metal As A Conductor

Band Theory: With no gap between a valence band and conduction band, energy is conducted more easily through metal.

Quantum Efficiency

This depends on the color of light being displayed.

(blue light = photons with high energy)

(red light = low energy)

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